Fig. 4.

Differentially expressed structural genes (DEGs) of anthocyanin-biosynthesis pathway induced by light deprivation. a DEGs were recruited by |log₂FC| ≥ 2 or FRKM ≥50. Blue and red boxes indicate downregulated and upregulated transcripts, respectively. Expression patterns are indicated at the side of each gene. CHS: chalcone synthase; CHI: chalcone isomerase; F3H: flavanone 3-hydroxylase; F3’H: flavanoid 3′-hydroxylase; DFR: dihydroflavonol 4-reductase; ANS: anthocyanidin synthase; UFGT: UDP glucose-flavonoid 3-O-glcosyl-transferase. b Phylogenetic clustering with corresponding genes of other fruit species. T4-P, peel at stage T4; T4-F, female flower tissue at stage T4; LD-P, stage 4 peel following light-deprivation treatment; LD-F, stage 4 female flower tissue following light-deprivation treatment